Baseball Rookies, Letter "O"

This is the list of all Baseball Rookies with a lastname starting with "O":

Pete O'BrienJohn O'BrienPeter O'BrienJustin O'ConnerDarren O'DayBilly O'DellJohn O'DonoghueLefty O'DoulBrian O'GradyGreg O'HalloranRyan O'HearnBrian O'KeefePaul O'NeilTyler O'NeilPaul O'NeillTyler O'NeillMichael O'NeillMike O'NeillSean O'SullivanJim O'TooleTrevor OaksJohnny OatesBarack ObamaBailey OberBrett OberholtzerAlex OchoaIvan OchoaJosh OckimeyRougned OdorJake OdorizziJose OffermanRowland OfficeAlexi OgandoShinnosuke OgasawaraChad OgeaBen OglivieSadaharu OhSeung-Hwan OhTomokazu OhkaRoss OhlendorfShohei OhtaniBob OjedaHideki OkajimaKazuma OkamotoChris OkeyJohn OlerudSteve OlinJose OlivaTony OlivaJared OlivaOmar OlivaresEdward OlivaresAl OliverGene OliverJoe OliverAndrew OliverAndy OliverHector OliveraMiguel OlivoScott OlsenMatt OlsenGreg OlsonGregg OlsonKarl OlsonTim OlsonMatt OlsonReese OlsonMike OltBrian OmogrossoJorge OnaPaul OneillSteve OntiverosJose OquendoErnie OravetzRey OrdonezMagglio OrdonezKevin OriePaulo OrlandoJonathan OrnelasJesse OroscoLee OrrJohnny OrsinoJoe OrsulakPhil OrtegaOliver OrtegaDavid OrtizJunior OrtizJose OrtizLuis OrtizJhailyn OrtizJoey OrtizDan OrtmeierJohn OrtonDonovan OsborneClaude OsteenDarrell OsteenJoe OstrowskiAl OsunaRoberto OsunaJose OsunaRoy OswaltAmos OtisAkinori OtsukaEd OttMel OttAdam OttavinoGlenn OttoJosh OutmanJames OutmanLyle OverbayDillon OvertonConnor OvertonJohan OviedoSpike OwenHenry OwensJerry OwensJeremy OwensJim OwensRudy OwensTyler OwensMicah OwingsChris OwingsPablo OzunaMarcell Ozuna